Select a category under [My Library] in the sidebar.
Double-click the desired song in the content list.
When a mark is displayed next to a file you wish to play, it means that the content does not exist at the save destination.
Double-click the song to reselect the save destination.
To use the play queue
The list of songs to be played appears when you click (Play Queue) .
You can rearrange the order of the songs by dragging and dropping, or you can remove songs from the queue by clicking .
You can also add songs to the queue by clicking  for the desired song in the content list and selecting [Play next] or [Add to Play Queue ].